P0A44: Drive Motor A Position Sensor Circuit Overspeed

P0A44 reports that the speed derived from the motor A resolver is above the highest speed the motor may run. Mitsubishi uses it on the 2023 Outlander PHEV front motor: set at 15,500 rpm or more for 0.5 s with module supply above 8 V, judged only when the position sensor itself is fault-free; the guided fix after other codes are ruled out is a new front motor. GM covers the same check under its own code P1B0D (above 11,500 rpm, Type A) instead of P0A44. A true overspeed can come from a slipping drivetrain or a mechanical fault; a false one from a corrupted speed signal. P0A3F to P0A43 cover the sensor circuit. The system cuts motor torque to protect the rotor.

Symptoms

• Electric drive torque cut during acceleration or high speed
• Hybrid/EV system warning and MIL
• Reduced top speed in limp mode

Most likely causes

• Mechanical fault in the front motor or its drivetrain (Mitsubishi replaces the motor)
• Real overspeed from wheel spin or a slipping coupling
• Disturbed resolver signal producing a false speed value
• Motor control module calculating speed incorrectly

What to check, in order

Start with the simplest. You can tick off each step.

1. Read the codes with a hybrid-compatible scanner and write down the freeze frame data
2. Make sure the battery cooling air intake is clean
3. Check the 12 V auxiliary battery, which can also trigger warnings
4. Leave any high-voltage measurements to a specialized repair shop

Good to know

• It can trigger limp mode.
• It affects emissions.

What each character of P0A44 means

• P: Powertrain: engine and transmission
• 0: Generic code: same on every make
• A: Hybrid or air and fuel
• 44: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0A44?

If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

What causes code P0A44?

The most common causes are: mechanical fault in the front motor or its drivetrain (Mitsubishi replaces the motor); real overspeed from wheel spin or a slipping coupling; disturbed resolver signal producing a false speed value.

Related codes

• P0A3FDrive Motor A Position Sensor Circuit
• P0A40Drive Motor A Position Sensor Circuit Range/Performance
• P0A4ADrive Motor B Position Sensor Circuit Overspeed
• P0A50Generator Position Sensor Circuit Overspeed

Sources

• mitsubishitechinfo.com: N503240230000800USA
• gsi.ext.gm.com: 13OBDG06 Hybrid Diagnostics
• law.cornell.edu: 13 CCR 1968.2

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.